20357804 has 6 divisors (see below), whose sum is σ = 35626164. Its totient is φ = 10178900.

The previous prime is 20357803. The next prime is 20357819. The reversal of 20357804 is 40875302.

It is a happy number.

It is a super-3 number, since 3×20357804³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20357803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2544722 + ... + 2544729.

It is an arithmetic number, because the mean of its divisors is an integer number (5937694).

Almost surely, 2^20357804 is an apocalyptic number.

It is an amenable number.

20357804 is a deficient number, since it is larger than the sum of its proper divisors (15268360).

20357804 is a wasteful number, since it uses less digits than its factorization.

20357804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5089455 (or 5089453 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 20357804 is about 4511.9623225377. The cubic root of 20357804 is about 273.0509192234.

The spelling of 20357804 in words is "twenty million, three hundred fifty-seven thousand, eight hundred four".